johnstone



R. McC. JOHNSTONE.

WINDING MECHANISM. i APPLICATION man DEC. H. I919.

1,355,106, Patented Oct. 5, 1920.

6 SHEETS-SHEET I.

jab Qttomw u R. McC. JOHNSTONE.

WINDING MECHANISM.

APPLiCATION man DELI], 19:9.

1,355,106. Patented Oct. 5, 1 920.

6 SHEETS-SHEET 3.

INVENTOR -i'aerfJ/QLJMxzs/oae R. McC. JOHNSTONE.

WINDING MECHANISM.

APPucmoN FILED DECJI. m9.

1,355,106, Patented Oct. 5, 1920.

6 SHEETS-SHEET 4.

1 r, "T 1 J8 I a ESH ATTORNEY H- McC. JOHNSTUNE.

WSNDING MECHANISM.

APPHCATION FlLED DEC, I i. IJIEJ.

1,355,106. Patented 00:. 5,1920.

6 SHEiTS-SH'iET 5.

INVENTOR JibJe/Z J12. afaxzs form ATTORNEY- fi- McC. JOHNSTONE. WINIMNG MECHANISM. MPUCATION mm arc. n, 1919.

v Patented Oct. 5, 1920 6 SHEETS-SHLET 6 8 wn R A w r.

ATTORNEY UNITED STATES PATENT OFFICE.

ROBERT M00. JOHNSTONE, OF ROSELLE PARK, NEW JERSEY. ASSIGNOR T0 CAMERON MACHINE COMPANY, OF BROOKLYN. NEW YORK A CORPORATION OF NEW YORK.

WINDING MECHANISM.

' Specification of Letters Patent.

Patented Oct. 5, 1920.

Application filed December 11, 1919. Serial No. 344,256.

lie it known that I, Ronmrr MeC. JonN- s'roNn, a eitizen of the l nited States. and a resident of Roselle Park, in the eonnty of l nion and State of New Jersey, have invehted eertain new and useful lmprovemvnts in finding llleehanism, of whieh the following is a speeitieation.

The present invention relates generally to a process and device for use in connection with maehines for handling flexible mate rials. sluh as paper or fabries, and is aapahle of a very wide appliration in the arts as will be apparent from a consideration of what follows:

Among the machines in whieh the invention ran be used are sheet or web feeding devil-es forprinting, folding 0r (tilt III}: mai-hiues; paper ealendering machines; textile finishing maehines; machines for coating or laminating sheets or fabrics; printing maehines: rolling up maehines; rewinding niaehines; slitting machines; and slitting and rewinding niarhines. The foregoing list is not intended to be a limitation as to the maehines in eonneetion with \vhir'h the illventiou is useful, but is in the nature of an exemplifieation of the universality of its up )lieation.

laper or fabric passing through machines of the ehararter indicated is subjected to longitudinal stresses that tend to produce, therein palpable longitudinal irregularities or wrinkles or to accentuate sueh irregularities it they already exist. This eondition is well known and has generally been asst uiated with the idea of transverse slai-k" in the material and, as a eonsoquenee, efforts to eorrect it: have been confined to rendering the material taut transversely.

In view of the constant longitudinal pull neeessarily exerted on the material in ma ehines of this rharaeter, it is very ditiieult to prodnee a taut rondition transversely. Furtbermorm in slitting and rewinding nuiehines where the web is divided lol'igiiudlnally into seetions and sueh seetions are re wound into side-by-side eoils, the effort of renderingthe material taut; transversely is to inrrease its width and tends to produre an overlapping or interweaving of the edges of adjareut coils thereby rendering it diilienlt if not impossible to separate them.

The main objeet of this invention is to nullify the )alpable longitudinal irregularities in flexible materials.

I have found that the ohjeetionable palpable irregularities may be distrilnited into unoiijeetionable minute undulations that not only free the material from positive defeets out also greatly improve its appearanee. in addition to this when the invention is used in eonneetion with slitting and rewinding maehines, the summation of the minute undulations being greater than the sun] of the palpable irregularities, the actual width of the slitted section is slightly decreased and, in eonseqnenee, no interweaving or overla n ping of the edges of adjacent eoils takes place. The distribution of the ,irregularh ties is aeeomplished by producing in the material a plurality of transitory longitudinal defleetions from the normal plane of its body, and this may be aeeomplished by a Inemben either stationary or rotating, having high and low surfaces to whirh the Ina-- terial conforms as it travels over the same. Snell sin-Fares may be produced in any suitable manner as by means of protuberance-es or depressions. but preferably a roller having non-helieal valleys and ridges used.

in the aeeompanying drawings, the invention is embodied in sevnral conerete and preferred forms in whieh Figure 1 is a diagrammatic view showing the invention applied to a seore-eutter and surfaee rewind maehine of the type shown in Patent No. 1,076,189, in \Ylllt'll the slitting operation is performed against a roller other than a rewinding roller.

Fig. 2 is a diagrammatic view showing the invention applied to a score-nutter and renter rewiml maehine of the type shown in Patent No. 1,256,499 in which the slitting operation is performed against a roller other than the one engaging the slittod sec tions during rewinding.

Fig. 3 is a diagrammatir view showing the invention applied to a sheareutter and surlaee rewind niaehine in whirl] the slitting operation is performed by cutters. mounted independently of the surface rewinding rolls.

Fig. 4 is a diagrammatic view showing the invention applied to a score-cutter sur' face rewind machine in which the cutter acts against one of the rewinding rolls.

Fig. .3 is a view looking in the direction of the arrow 5 in Fig. 4.

Fig. 6 is a diagrammatic view showing the invention applied to a sheancutter surface rewind machine in which one of the cutting elements constitutes part of the rewinding means.

Fig. 7 is a view looking in the direction of the arrow 7 in Fig. 6.

Fig. 8 is a diagrammatic view showing the invention applied. to a center rewind machine in which one'of the cutting elements may constitute part of the rewinding means.

ig. 9 is a view looking in the direction of the arrow 9 in Fig. 8.

Fig. 10 is a diagrammatic view showing the invention applied to a score-cutter surface rewind machine in which a guide memher is interposed between the slitting and rewinding means.

Fig. 11 is a diagrammatic view showing the invention applied to a surface rewind machine in which the web is threaded between the rewinding drums and against the back winding drum.

Fig. 12 is a diagrammatic View showing the invention applied to'a surface rewind machine in which the web is threaded be tween the top rewinding roller and rewinding shaft.

Fig. 13 is a diagrammatic view showing a score cutter and surface rewind machine in which the material is slitted on the first rewinding drum. is then led away therefrom and then returned between the first rewindin drum and the rewinding shaft.

i ig. i4 is a diagrammatic view showing a scorecutter and surface rewind machine in which a distributing memher other than a roller is employed.

Fig. it") is a view similar to Fig. 14 but more in detail and partly in section.

Fig. 16 is a sectional detail view on the line iii-l6 of Fig. 15.

Fig. 17 is a detail view of a modified form of a distributing member shown in Figs. 15 and 16.

Fig. 18 is a face view of a still further modified form of the distributing member.

Fig. 19 is a diagrammatic view showing a winding machine associated with a dandy roil that also acts as a distributing roller in g the paper from the reels of a paperg nmchinc to the winding machine. F in is a diagrammatic view showing the invention applied either to a printing machine or to calendering rolls.

Fig. "21 is a diagrammatic View showing the invention applied to a sheet feeding machine.

Fig. 22 is a view partly in elevation, broken away, and partly in section of a separating roller embodying the invention.

Fig. 23 is a fragmentary sectional view longitudinally through the separating roller.

Figs. '24. 25 and 2.6 are diagrammatic views showing developments of dill'erent forms of circumferential grooves that may he used in the separating roller.

The invention may best be understood. by first considering Figs. .22 to 26. If indicates a roller of any suitable construction, the surfacc'ot' which is provided with circumferential grooves or valleys 19 between which are normal portions or hills 20. These grooves and hills may extend over the entire surface of the roller or only part way. In practice. I have produced excellent results by using roller fourteen inches in diameter. having valleys elcvcn-sixteenths of an inch wide and onethirty second of an inch deep and having hills seven-sixteenths of an inch wide. I do not wish. however, to he festrictcd to these dimensions. The surface of the roller is highly polished and the vallevs and hills merge into each other without pronounced separating edges as indicated in Figs. 22 and '23. The grooves are very shallow and maybe of many different shapes. As indicated in Fig. 26. adjacent valleys 19 and hills 20 run straight circumfercntially. In Fig. 24. the valleys 19 and hills 2.0" extend circumfereutially and sinuously, but not helically. around the roller; that is to say. one groove does not merge into another and the formation is therefore unlike that of a screw thread. In Fig. 25. the sinuous character of the valleys l9 and hills 20* is more pronounced than in Fig. 24.

It flexible material is now passed. while under tension, over a roller like 18. said material will conform to the surface of the rollernnd will thus have produced on its surface numerous transitory longitudinal deflections from the normal plane of the body of the material. This will not remove the transverse slack or render the material taut transversely, but it will have a very remarkable effect in distributing the slack into what may be termed minute undulations that are unobjectionable, thereby ncllifying palpable longitudinal'wrinkles and also improving the appearance of the paper to a considerable degree. It will be understood also that since numerous undulations'are formed, the paper will be more slack transversely than it will be when a few pronounced irregularities exist. unless they be of unusual amplitude. so that the width of the paper will he slightly decreased. Therefore. when this invention is used in connection with slitting and rcwinding machines. the slitted sections will separate, suiiicicntly to prevent interweaving of the edges of adjacent sections. The straight valleys and hills shown in Fig. 26 may be used with advantage when rcwinding material such as cloth; they are not so advantageous when rewinding paper because it is so easily marked. By using the groove formations shown in Figs. 24 and 25, however, paper can be rewound without leaving any mark.

The machines to which the invention is applicable vary widely, and the numerous types of machines indicated in the drawings are not to be construed as limiting the invention to the types disclosed.

In Fig. 1, distributing or separating roller 18 constitutes the first rewinding drum of a surface rewind machine. It will be seen here that the web 21 is wrapped around the roller for considerable distance and that rewindin on shaft 22 takes place immediately a ter deflection of the material has occured. Excellent results have been obtained with this construction. In this example of the invention the web is slitted by scorecutter '23 actin against glass-hard cutter roller 24 and t e slitted sections are then passed to the distributing and rewinding roller 18. In this figure, 25 is a back rewinding drum and 26 a top pressure or top rewinding roller.

In Fig. 2, distributing roller 18 may also form a part of the rewinding.mechanism. The type of machine shown here is generally referred to as a center rewind machine; and 27 is a driven rewinding shaft pirotally mounted at 28 and counterweightcd to sustain part, or the entire weigl'it. of the rewound material on shaft 27. The rewound material on 27 may or may not rest on roller 18. slitting here takes place by means of cutting roll 30 and score-cutter 31.

The construction shown in Fig. 3 is substantially like that shown in Fig. 1 except that overlapping shear-cutters 32 are used instead of score cutters.

In Figs. 4 and 5. we have substantially the same construction as shown in Fig. 1. except that the score-cutter 23 acts against roller 18 which thus acts as a cutting, distributing and rewinding roller. In order to effect this, smooth surfaces as are formed in grooved roller 18 at the places where cutters 23 are in contact with it.

In Figs. 6 and 7, there is shown substantially the same construction as in Fig. 3 ercept that distributing or separating roller 18 is not only a part of the rewinding means but also constitutes one of the shear cutters, being to that end. providcd with cutter grooves 34 in which engage overlapping shears 32.

In Figs. Fl and 9 is shown substantially the same construction as in Fig. 2 except that score-cutter 3] acts against distributing roller 18, which latter to that end is proroller 36, back rewinding drum 25 and rewinding shaft 22.

In Fig. 11 is shown a rewinding shaft 22 and a front rewinding drum 3?. roller 18 constituting the back rewinding drum. The slitting means are here illustrated as shear cutters 32 from which the web passes to guide roller 18 and thence between the lcwinding drums to the rewinding shaft. If desired, guide roller 18 could be a distributing roller and 18 could then be merely a back winding drum.

In Fig. 12 is shown a construction substantially the same as in Fig. 1 except that here the web after being slit-ted is passed to distributing roller 18 constituting a top pressure or rcwinding roller and thence to rewinding shaft 22 with which coiipcrate front and back rcwinding drums 38 and In Fig. 13 is shown a construction substantially the same as in Fig. 4 except that cutter 23 acts against the front rcwiudiug drum 39, the paper after being slittcd pass ing over distributing drum l8 and then back between front rewinding drum and rewinding shaft.

In Fig. 14 is shown substantially the same construction as in Fig. 1 except that here the distributing member 18" is a stationary member and not a roller. This construction is shown more in detail in Figs. 15 and 16 from which it appears that the paper after being slittcd passes over a number of members 18', there being preferably a member for cucll section. The face of each of these members has hills 1!)" and valleys 19 in its surface. thc axis of cach hill and valley being in the same dircctiou as the longitudinal travcl of the web. The contour of said member 18" may. however, vary widely and may be curved transversely as shown in Fig. 1? or. as shown in the face view Fig. 19. the hills and valleys may be plow-shaped or have other suitable configuration.

In Fig. 19 roller 18 may be a dandy roller such as is interposed between the reels of a paper-making machine (not shown) and :1. winder. This dandy roller, as is well known, is usually spring-scated at one or both ends, as shown. to adjust the paper to a right anglc direction with respect to the axis of the rolls of the winding machine. If the winding machine also performs the function of slitting; then a construction similar to the one shown. in Fig. 1 could be used and an additional distributing rollcr would then be employed al'tcr the paper is sliticd. it

may be remarked here that when the paper is slitted the sections are usually clearly separated, but the moment the shtted sections strike an even surface the sections tend to approach each other and to interweave' It is therefore preferred. when using the invention in a slitting machine, to have the distributing roller so located that it is the first surface after slitting, and. the last surface before rewinding that the sections engage.

In Fig. 20 is shown diagrammatically two sets of cylinders 40 and 41 which may rep resent the cylinders of a printing machine or which may represent the rolls of a calendering machine. To distribute palpable wrinkles one or more distributing rollers 18 may beemployed and the paper led over them. The arrangement of rollers 18 shown in the figure is for a calendering machine. In printing I .achines of-a certain type probably only one roller 18 would be used, and that before the paper entersthe first set of cylinders, since otherwise the register between the first and second printing might be destroyed.

In Fig. 21 a driven distributing roller 18 is located in a feed board 42 over which a sheet passes. A drop roller 43, actuated by a cam 44 descends into contact with the sheet and presses it against the distributing roller and thus nullifies the wrinkles as it feeds the sheet forward.

I claim: 7

1. The method of nullifying longitudinal irregularities in flexible material which con sists in distributing said irregularities into minute longitudinal undulations by producing transitory longitudinal deflections in said material.

2. The method of preventing overlapping of the edges of adjacent rewound coils formed from sections of flexible material which consists in forming minute longitudinal undulations in each of said sections by producing transitory longitudinal deflections in said material.

3. The method of decreasing the Width of slittcd sections of flexible material which consists in forming minute longitudinal undulations in each of said sections by produc ing transitory longitudinal deflections in said material.

4; The method of nullifyin transverse slack in flexible material whic consists in distributing such slack into minute longitudinal undulations by producing transitory longitudinal deflections in said material.

5. A winding machine'comprising: means for winding web sections into side by side coils, and separating means for preventing interweaving of adjacent wound coils consistinp of a device for producing in each section a plurality of transitory longitudinal deflections from the normal plane of the body of the indlvulual sections.

6. A winding machine comprising: means for winding web sections into side by side coils, and separating means for preventing interweaving of adjacent wound coils consisting of a roller for producing in each sec tion a plurality oftransitory longitudinal deflections from the normal plane of the body of the individual sections.

7. A winding machine comprising: means forwiliding web sections into side by side coils, and separatin means for preventing interweaving of ad acent wound coils consisting of a roller constituting a part of the winding means for producing in each section a plurality of transitory longitudinal deflections from the normal plane of the body of the individual sections.

8. A winding machine comprising: means for winding web sections into side by side coils, and separating means for preventing interweaving of adjacent wound coils consisting of a device having grooves in its surface extending in the general direction of the travel of the sections and over which said sections pass.

9. A winding machine comprising: means for winding web sections into side by side coils. and a separating means for preventing interweaving of adjacent wound coils consisting of a roller havingcircumferential grooves in its surface overwhich said sections pass.

10. A winding machine comprising means for winding web sections into side by side coils and a separating means for preventing mterweaving of adjacent wound coils consisting of a roller, constituting a part of the winding means, having circumferential moves in its surface and over which sair sections pass.

1 l. A winding machine comprising means for winding web sections into side by side coils including a plurality of surface winding rolls, that surface winding roll with. which the paper first engages having circumferential grooves in its surface that engage the body of the sections. 12. Means for decreasing the width of sections of flexible material to be wound com rising: a roller having a plurality of shal ow circumferential grooves in its surface to which the body of the sections conform as they travel over the same.

13. Means for decreasing the width of sections of flexible material to be wound comprising: a roller havin a plurality of shallow non-helical circnmfiarential grooves in its surface to which the body of the sec.- tions conform as they travel over the same.

14. A separating roller, for use in separating-slittcd sections to be rewound. having a polished surface and for each slitted scction a plurality of circumferential grooves in its surface to which the body of each section conforms as it travels over the same.

15. A separating device. f0: use in seeperating Slllllll sertinns be he rewnnml bi lU by sale. having a plurahty of grooves in its warfare extending in the general. direction of the travel f the Sections, to which the hmly of each section confonns as it travels over the same.

16. A separating device, for use in separating shtted seetlons to be rewound side by side, having a plurality nl' sinnens grnuves in its snrl'aee extending in the general (lireetien oi the lla\el 01' the set'liuns. in whieh the hnlly (if eaeh hW'llUll ('(Hllul'lHH a it travels over the same.

Signed at- Brooklyn, in the enunly ul Kings, uml Stale of New York, this J (lay of Deeenihen i919.

ROBE T NeL. JUIINSTUNE. 

